SE8305453D0 - PROCEDURE FOR PREPARING LIGNOSULPHONATE BASED MIXTURES SPECIFICALLY USED AS CONCRETE ADDITIVES - Google Patents

PROCEDURE FOR PREPARING LIGNOSULPHONATE BASED MIXTURES SPECIFICALLY USED AS CONCRETE ADDITIVES

Info

Publication number
SE8305453D0
SE8305453D0 SE8305453A SE8305453A SE8305453D0 SE 8305453 D0 SE8305453 D0 SE 8305453D0 SE 8305453 A SE8305453 A SE 8305453A SE 8305453 A SE8305453 A SE 8305453A SE 8305453 D0 SE8305453 D0 SE 8305453D0
Authority
SE
Sweden
Prior art keywords
concrete
lignosulfonate
based mixtures
lignosulphonate
preparing
Prior art date
Application number
SE8305453A
Other languages
Swedish (sv)
Other versions
SE8305453L (en
SE453095B (en
Inventor
V Sarkkinen
Original Assignee
Flowcon Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Flowcon Oy filed Critical Flowcon Oy
Publication of SE8305453D0 publication Critical patent/SE8305453D0/en
Publication of SE8305453L publication Critical patent/SE8305453L/en
Publication of SE453095B publication Critical patent/SE453095B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/16—Sulfur-containing compounds
    • C04B24/18—Lignin sulfonic acid or derivatives thereof, e.g. sulfite lye

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The present publication describes a process for the preparation of lignosulfonate-based mixtures used in particular as additives of concrete. According to the process of the present invention, the sulfite spent liquor is treated with a nitrating reagent, such as nitric acid or nitrogen dioxide, and the reacted lignosulfonate is separated from the reaction product, and, together with the reacted lignosulfonate, the nitrate and nitrite compounds are separated from the reaction product, and the product mixture formed by the reacted lignosulfonate, nitrate compounds and nitrite compounds is purified in a way known per se. The product prepared in accordance with the process is suitable in particular for the liquefaction of concrete, for accelerating the setting of concrete, and for inhibiting corrosion of concrete reinforcement steels contained in concrete, if any.
SE8305453A 1982-10-08 1983-10-04 PROCEDURE FOR PREPARING SUGAR-FREE LIGNOSULPHONATE-BASED MIXTURES FOR USE SPECIFICALLY ADDED FOR CONCRETE SE453095B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI823441A FI66414C (en) 1982-10-08 1982-10-08 FOERFARANDE FOER FRAMSTAELLNING AV LIGNOSULFONATBASERADE BLANDNINGAR FOER ANVAENDNING I SYNNERHET SAOSOM TILLSATSAEMNEN FOR BETONG

Publications (3)

Publication Number Publication Date
SE8305453D0 true SE8305453D0 (en) 1983-10-04
SE8305453L SE8305453L (en) 1984-04-09
SE453095B SE453095B (en) 1988-01-11

Family

ID=8516127

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8305453A SE453095B (en) 1982-10-08 1983-10-04 PROCEDURE FOR PREPARING SUGAR-FREE LIGNOSULPHONATE-BASED MIXTURES FOR USE SPECIFICALLY ADDED FOR CONCRETE

Country Status (5)

Country Link
US (1) US4488907A (en)
CA (1) CA1199343A (en)
DE (1) DE3336131A1 (en)
FI (1) FI66414C (en)
SE (1) SE453095B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3730527A1 (en) * 1986-09-19 1988-03-24 Sandoz Ag CONCRETE ADDITIVES
US5446133A (en) * 1990-09-06 1995-08-29 Lignotech Usa, Inc. Nitric acid oxidized lignosulfonates
US5169931A (en) * 1991-05-23 1992-12-08 Itt Rayonier Inc. Nitrite-oxidized lignosulfonates and method of making the same and use of these as dispersants
US20040158033A1 (en) * 2003-02-06 2004-08-12 Benson Robert A.C. Treated lignosulfonates as additives for cementitous systems

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3297676A (en) * 1963-08-14 1967-01-10 Georgia Pacific Corp Recovery of lignosulfonates
JPS50962B1 (en) * 1971-08-06 1975-01-14
FI60873C (en) * 1979-05-28 1982-04-13 Tampella Oy Ab FOERFARANDE FOER AVSKILJNING AV LIGNOSULFONSYROR OCH LIGNOSULFONATER GENOM EXTRAKTION UR AVLUT FRAON KOK AV CELLULOSAHALTIGT MATERIAL
FI62114C (en) * 1979-11-05 1982-11-10 Flowcon Oy LIGNINPRODUKT FOER ATT GOERA CEMENT OCH ANDRA FINFOERDELADE MIERALMATERIAL LAETTFLYTANDE

Also Published As

Publication number Publication date
FI66414B (en) 1984-06-29
SE8305453L (en) 1984-04-09
US4488907A (en) 1984-12-18
FI823441A (en) 1984-04-09
FI66414C (en) 1984-10-10
DE3336131A1 (en) 1984-04-12
FI823441A0 (en) 1982-10-08
CA1199343A (en) 1986-01-14
SE453095B (en) 1988-01-11

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